Yamata no Orochi no Gyakushū (Japanese: 八岐之大蛇の逆襲, Eight-Headed Giant Serpent's Counterattack) is a tokusatsu kaiju fan film shot on 16mm by Daicon Films (later Gainax).
This film was also a turning point for the career of special effects director Shinji Higuchi.
This film was Daicon's epic parody of the many classic daikaiju (giant monster) films, and featured a more biomechanical-looking version of the mythical eight-headed serpent, the Orochi.
2000 years later, they dispatch the Orochi again to destroy Japan and the rest of the world.
Only a team of the Japan Self-Defense Forces and a scientist (two other staples in the daikaiju genre), can destroy it.